Machine for making split cotter pins, spring washers, thimbles, and like annular members



F. ATHIMON. MACHINE FOR MAKING SPLIT CUTTER PINs, SPRING WASHERS, THIMBLES, AND LIKE ANNULARMEMBEHS.

APPLICATION FILED JUNE 22, 1920.

5 SHEETS-SHEET 1.

Patented Feb. 28, 1922.

F. ATHIMON.

MACHINE FbR MAKING SPLIT COTTER PINS, SPRING WASHERS, THIMBLES, AND LIKE A NNULA'R MEMBERS- APPLICATION FILED JUNE 22, I920.

1,408,063, Patented Feb. 28, 19 22.

' 5 SHEETS-SHEET 2.

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fiY-ancis Athz'mofl [WM 47W A 'I'TDRNE Y- II/I/I A l F. ATHIMON. MACHINE FOR MAKING SPLIT COTTER PINS, SPRING WASHERS, THIMBLES, AND LIKE ANNULAR MEMBERS.

7 APPLICATION FILED JUNE 22, I920- 1,408,063, Patented Feb. 28, 1922.

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INK film 5'32 11c :15 Af/n'man F. ATH|MON.. MACHINE FOR MAKING SPLIT CQTTER PINS, SPRING WASHERS, THIMBLES, AND LIKE ANNULAR MEMBERS- v APPLICATION FILED JUNE 22. 1920. 1,408,063, Patented Feb. 28, 1922.

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F. ATHIMON. MACHINE FOR MAKING SPLIT COTTER PINS, SPRING WASHERS, THIMBLES, AND LIKE ANNULAR MEMBERS.

Patented Feb. 28, 1922.

5 SHEETS-SHEET 5- m h \J F ig. 2.

Figi21 Figsl'dand 4 are respectivelyfsectional *views on lines A A'a'nd D'.D (Fig.1).

j'chine.

UNITED srArg fs "PATE T :oFFicE.

FRANCIS ATHIMON, 0F PARIS, FRA1\TGE.

macmmi'ron mai'rriiosremr comm; PINS, SPRING- wesnnns, 'rrrmnnns, Lin: ANNULAR MEMBERS.

(GRANTED. "UNDER- THE PROVISIONS or THE Aer cruisers, 1 921, 41 STAT/Li, 1313.)

To all whom it may cmem- Be it known thatl, FnANoIs A'rmiiioiv, a

citizen of the" Republic of France, residing at 10 Rue Auguste Chabrieres, Paris, in

' the Republic of France, have invented new and useful Improvements injMachines for Making Split Cotter Pins, Spring VVashers, Thimbles, andlike Annular Members, (for which I have filed an app'licationin'France March 31, 1919', Patent No; 497,712,).015'

which the following is'a specification.

This invention relatesto a machine for making split cotter pinsfspring washers, 'thimbles, pipe collars and generally-speaking'all similar articles, the' form of which corresponds to an open ring." Said machine is capable of operating continnonslyfand comprises rotatable disc .plates provided with a series ofidentical operating devices, each of them comprising a system of'knives,

mandrel and cams 'driven'by, suitable gradients and recallingsprlngs, the knivesacting first as feeding means for the wire or'fshe'et plate vmaterlal from which the desired articlewill be obtained and cutting thereafter the same at the desired length. The operative members of the machine arechanged according to the kind of article to hechtained.

Inthe annexed drawings, given byway of examp1e: u

F 1g. 1 1s a sectional front'v ewof a machine in accordance w1th the invention and adapted for split cotter pins manufacturing, the section beingtakeh on the'line B-B,

Se searches "1m o -G' (Fig. 1

Figs. 5to l2show the'flmives of the ma- Figs. 5, 6 and-7 referto the fixed knife showing it respectively in left side, in front "and in right side view. p Figs. 8, Qand IOrefer to the mov ng knife which is shown respectively left, front and right side viewyand \Figs. 11 and 12respect1vely show the arrangement of the knives in opened and closed positions;

Figs. 13,14, 15 and 15 show difierent "action of springs '0.

shapes of members (mandrel, cams,.knivesl corresponding to 'a machine for making grover washers. I

Figsb16, 17, 18. 19 and 20 are other difierent shapes of such members correspond- Specification of Letters Patent. Patented Feb. 28, 1922. Application filed Jun 22, i920. Serial in. $0,960.

ing to the case of thimbles manufacturing,

" 20 'h'eing a section on line .EE Fig. 19),. y Figs. 21 to 24 correspond to collars manufacturing.

An important advantage of the machine" consists in its high producing efliciency. Referring to Figures -1'to 12, the machine shown is adapted for split'cotter-pins manufacturing. i

It comprises two discs g and .0 g.2) assembled by cheeks h and V 1 on the shaft'z'. a peripheral groove being provided; said groove extending radially to a certain depth between said discs which form together a rotating plate. H v

Inside these discs are boreda suitable number of cylindrical. o enings 71 and 7c jreceivingthemandrel-holders Z and Z and the springs m and m. intended to pushsaid holders outside of said openings. The outside part of these mandrel-holders is prO- V vided with a yoke n and aroller n ferreducing' the friction on the gradient 0. the inside'part of said holders is screwed a socket pin which is located the mandrel Said mandrel consists ofa cylindrical part provided "with a yoke andiaroller and of a finger constituting the properly called manjdrel. -A spring p continuouslypushes the whole against the gradientwl'lfAt the lower ,7 partof mandrel holder Z 'is'jsecured a semicylindrical opening'intended to receive the fingei mandrel ina certain' position." I In the groove j are located, n a corresponding number, blocks of similar'cams a, a and in theside-walls the axles of said cams. [Said cams are kept open under the Between the blocks ofcams'are secured Said knives The d t t pushed by a spring e on the gra ien Y The movable kni esv are alternately placed trontwards and backwards with reference to the direction of rotationof the machine. The sections of wire after being out are thus parallel situated to the plane of rotation. The whole machinathe gradients excepted, is rotatable in the direction of arrows The wire material T, of convenient thickness, is unwound out of a reel an continuously feeds the machine.

During the rotation from I to J (Fig. 1) the knives progressively close and insure the driving of wire; from J to K they keep closed, from .K to L .theyopen, from L" to I they stay open; such movements being caused by the gradient 15. p

' During therotation from L toM the mandrels come into the groove (Figure 2). From M to O theykeep entirely engaged in said groove; from O to P they drawback, and from P .to L they keep entirely out of the groove, such movements beingsecured by the gradient 1. j During .the. rotation from N to O the mandrel-holders progressively move towards the cams, such movement being insured by the gradient 0. From 0 to P, the said holders are at'once removed and stay in such posit on from P to N.

Considering the block of cams and the mandrel starting from position 1 ig. 1) and executing a complete revolution:

".In position 1, .themandrel is drawn back and the wire comes into the openingbetiveen'the bladesand the knives (Fig. 11). In position 2, the knivesstart cutting the wire; in position 4, the mandrel starts over coming the wire; in position 7, the mandreleholder and consequently the mandrel itself come into motion towards the block of cams. In position 8, the cutting by the knives is completed the ends of the sections of wire are fastened into the hollows u and u and the mandrel starts pressing upon the wire. In position 9, the knives keep in .anarnclaanged position and themandrel still presses upon the wire, In position :10, the mandrel further moves infwardlyand the opening .ofthe knives begins; in position 11, the knives are entirely opened. From .posiier; .1 to pos o 4, the andre t l v flier.moveswithout any other changing. In position 15,.the of theginandrehholder (E essenc pr s in j p n th h niee 3,1 f the ea wher by th Inib f fij qs; uch clo i s n inues un p0- si e ,9 t rm ng he b n Of the 'p itc0 'ter pin. Between position 19 and 20 the mandrel holders quickly ,n ove outwards; as the part 20 is no more incontact with .the he -ni s 6 a, he ams open u d th a t .Q sp i s' and he nend i a its l d aws n re y ha n t c the gr ve Mhu j eiedting emtte .p n iehb-v g avity an centrifugal 'force is pro ected as new; 1,

m ircu ar. cross s c ion shap d section, on which the mandrels, n1andrel-holders, knives and blocks of cams keep in an unchanged position.

At each revolution of the machine, each block of cams having occupied said various positions, a number of pins equal to the number of blocks of cams and mandrels is produced. If the machine is fed with several wires,'placed side by side, said production is to be multiplicated by the number of wires. It is obvious that the number of blocks of cams and mandrels is not limited and that as many ins will be obtained at each revolution as locks will be provided. In case the machine is adapted for making grover washers (Figs. 13 to 1 5") the general arrangement is the same as for. cotter pins but the forms of knives, ma-ndrels and. blocks of cams are changed,, saidoperating members being disposed as follows:

The mandrel itself having a comparatively strong section maywork in an overhun pe t the mandrelh as u in the ease of the manufacture of cotterpins being then omitted. The cams are shaped as shown in Figures 13 and 15 The cutting part of the knives instead of presenting a right angle, as for pins making, has an acute angle to cut on a sharp edge the ends of the washer intended to form .a spring. The movable knives all out behind the fixed knives (with reference to the direction of rotation of the machine). Such device permits the wire afterbeing cut to he placed obliquely with reference to the plane of rotation of the machine, such obliqueness being necessary to, give the washer a spiral form.

The general device of the machine for making thimbles (Figs. 16 to 20) is the same as for cotter-pins except in what concerns the forms of knives, mandrels and blocks of cams. As the thimble because of its shape is due to he formed inside a groove provided in the mandrel, it is necessary, in view ofits ejection to divide said groove in two parts, a smaller one being. proyided in the nandrel holdeiql", a largerone inthe mandrel holder 1 Which insures-the ejec- 1 tion. The cams are shaped as shown in Figre 5 and 1 A t w rib no ed th t, in he. cl s ng o ition, aid c ms n rely s ou d h thimb s t effec a prime sh pin o the ein y ':l7he r z e e s e present a semi-annular projection having a v Instead of knives as in the device .for roqtterwpinsmaking, the machine 'isprovided with: unches 8 mg every element ofsheet when out under the n n eje ng be mand el q T y con i eta fixedr eee a (F g ovide with an oblique counter punch a."

thgsheet (Fig 19), said punches cutting the sheets g at theright size,shaping-;the ends and pushthe bolts are to be executed.

is to be wound, and of a punch 8 having a corresponding form, which cutsthe sheet by pressing it 'on said counter-punch a. lVhen the sheet is cut, the forks then formed at the ends of each strip come upon the piece .a-and are pushed under the fixed mandrel 9" by the obliqueness of the piece a. To allow the winding of the strip the punch slides at a determined angle with reference to the plane of rotation.

The general arrangement of the machine for making collars (Figs. 21 to 24) is the same as for cotter-pins making, the knives, mandrels and blocks of cams being changed. In such case, besides, the shaping, the rounding off the ends of each strip of sheet as well as the punching of holes to receive Said rounding off is made by the punch 8 "instead of the knivesfor cotter pins making, and said punching of holes is made by other punches secured on the cams and the mandrel. As the mandrel 9 may be strong enough, the machine comprises a'single mandrel holder Z. The part of the mandrelshaping the collar has a section shownin Figures 21 and 2-3, such section having the outside form of a collar. Moreover, the mandrel is provided with a recess g intended to receive the punches w w of cams a a and to evacuate the cut off parts of the collars. The punches thus substituted for ,7 the knives have the double object of cutting the sheet at the right length and of rounding off their ends. Said punches are constituted as follows:

The iron sheet is rounded upon a female piece 2 (Fig. 24) said piece being fixed,

the recess of said piece communicates with another recess 21* of discsg to allow the evacuation of the falls. A punch of convenient shape presses on the strip at the wanted time andpenetrates the'p'iece 2? thereby cutters Patent is:

ting the strip in theform of said piece 2 As said punch is not to remain inside the groove y as it would disturb the winding of the strip, it slides under a certain angle with reference tothe plane of rotation instead of sliding in the plane itself.

Having now described my invention, what I claim as new and desire to secure by Let l. A machine for making articles the form of which corresponds to an open ring comprising a frame, a rotating plate, a series of identical devices on said rotating plate, said devices being constituted by several operative members, some of them acting parallelly and the other perpendicularly to the plane of rotation, gradients on the frame, rollers guided by said fixed gradients and adapted to actuate the said operating members, and a material carrying reel on the frame, substantially as described and for the purpose set forth.

2. A machine for making articles the form carr in or cuttin members actin 361- b b b dial holes therein, mandrel holders located of which corresponds to an open ring, eomprisinga frame, a rotating plate having radial holes therein, mandrel holders located in said holes and outwardly pushed by springs, friction rollers provided at the top of said holders, mandrels provided at the basis of said holders and parallel to the axis of the machine, a fixed gradient'radially actuating said holders by said friction rollers,

pendicula'rly to the plane of rotation, shaping-members acting para'llelly to the plane of rotation, fixed gradients actuating said members and a material carrying reel on the frame, substantially as described and for the purpose set forth.

3. A machine for making articles the form of which corresponds to an open ring, comprising a frame, a rotating plate having rain said holes and outwardly pushed by springs, friction rollers provided at the top of said holders, mandrels provided at the basis of said holders and parallel to the axis of the machine, a fixed gradient radially actuating said holders by said friction rollers, an outwardly projecting rod on each of said mandrels, a friction roller on each of said rods, a gradient parallel to the plane of rot-ation actuating the corresponding mandrel, a spring contacting said roller with said graclient, a groove in said plate, a finger on each of said mandrels inwardly projecting across said groove and driven by the corresponding mandrel holders, said finger pressing upon the Wire or sheet and ejecting the finished article at the end of the operation, carrying or cutting members acting perpendicularly to the plane of rotation, shaping members acting parallelly to the plane of rotation, fixed gradients actuating said members, and

a material carrying reel on the frame, substantially as described and for the purpose set forth.

' A. A machine for making articles the form! of which corresponds to an open ring, comprising a frame, a rotating plate having radial holes therein, mandrel holders located in said holes and outwardly pushed by springs, friction rollers provided at the top of said holders, mandrels provided at the basis of said holders and parallel to the axis of the machine, a fixed gradient radially ac tuating said holders by said friction rollers, an outwardly projecting rod on each of said mandrels, a friction roller on each of said rods, a gradient parallel. to the plane of rotati on, actuating the corresponding mandrel, a spring contacting said roller with said gradient, a groove in said plate, a finger inwardly projecting in an overhung position across said groove and driven by the corresponding mandrel-holder, said finger pressing upon the article or fabrication and ejector cutting members acting perpendicularly to the plane of rotation, shaping members acting parallellyeto the plane of rotation, fixed gradients actuating said members, and

a material carrying reel on the frame, substant ally as described and forthe purpose set fort i t 5. A- machine for making articles the form} of which corresponds to an open ring, com prising a frame, a rotating plate, mandrels and mandrel-holders located in saidplate, fixed gradients actuating these members, material cutting devices secured in the inter vals between the mandrels, in each device, a knife fixed, and another cooperating knife movable in said plate, a recalling spring and a friction roller on said movable knife, a gradient-parallel to the plane of rotation actuating said, roller, and a material carrying reel on theframe of the machine, substantially as described and for the purpose set forth, I t f 6. A machine for making articles the form of which corresponds to an open ring,v comprising a frame, a rotating plate, mandrels and mandrel holders located-in said plate, fixed gradients actuating these members, sheet cutting devices securedin the intervals between the mandrels, in each device, a knife fixedand another cooperatingknife movable insaid plate, a recalling spring and a friction roller on said movable knife, a gradient parallel to the plane of rotation actuatingsaid roller, themovable knives all cutting thGWlI'B or sheet behind the fixed knives so as to present the cut sections obliquely With reference to the plane of rotation and a material-carrying reel on the frame of the machine, substantially as described and forthe purpose set forth.

7 A machine for making articles the form of which corresponds to an open ring, comprising a frame, a rotating plate, mandrels and mandrel holders located in said plate, fixed gradients actuating these members, ma- 2 terial cutting devices secured inthe intervals between the mandrels, first fastening and driving sald wlre or sheet before progressively cutting it, and a material carrying reel on theframe ofthemachinasubstantiallyas described and for-the purpose set forth. i i

A machine for making articles the form of which corresponds to an open ring, comprising a frame; a rotating plate, a seriesof identicalv devices on said plates embodying knives, niandrels, mandrel holders and blocks of cams, said cams being normally kept open by a spring and presenting an internal shape exactly corresponding to the-form of the article to be made, heel pieces on" said cams actuated by the mandrel holders and progressively closing saidcams When said'holders graduallymove towards the 'centerof ing series of knives, inandrels,;mandrel fholders and blocks of cams, said cams being'normally kept open by a spring and presenting a an internal shape exactly corresponding to the form of the article to be made, heel pieces on said cams actuated by the mandrel holders and progressively closing said cams when said holders gradually move towards the center ofJtheplate, fixed gradients actuating theseveral operatingmembers, and several material carrying reels on the frame of the machine and continuously feeding the-said machine with-layers of wire or sheet placed side by side. a

- In testimony whereof I have nameto this specification;

rRA -cis ATHI M'oN,

signed my 

